Home / 890,062.80-1,228,290.32-482,165.40

Finding the Fourth Proportional to 890,062.80, 1,228,290.32 and 482,165.40

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Solution

The fourth proportional to 890,062.80, 1,228,290.32 and 482,165.40 is: 665,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,062.80 : 1,228,290.32 = 482,165.40 : x
  2. Step 2: Convert to fraction form
    890,062.80/1,228,290.32 = 482,165.40/x
  3. Step 3: Cross multiply
    890,062.80x = 1,228,290.32 × 482,165.40
  4. Step 4: Simplify right side
    890,062.80x = 592,239,093,458.93
  5. Step 5: Solve for x
    x = 592,239,093,458.93/890,062.80
  6. Step 6: Final answer
    x = 665,390.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.